404214263 has 2 divisors, whose sum is σ = 404214264. Its totient is φ = 404214262.

The previous prime is 404214197. The next prime is 404214269. The reversal of 404214263 is 362412404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404214263 - 2¹² = 404210167 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404214269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202107131 + 202107132.

It is an arithmetic number, because the mean of its divisors is an integer number (202107132).

Almost surely, 2^404214263 is an apocalyptic number.

404214263 is a deficient number, since it is larger than the sum of its proper divisors (1).

404214263 is an equidigital number, since it uses as much as digits as its factorization.

404214263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 404214263 is about 20105.0805270708. The cubic root of 404214263 is about 739.3848448683.

Adding to 404214263 its reverse (362412404), we get a palindrome (766626667).

The spelling of 404214263 in words is "four hundred four million, two hundred fourteen thousand, two hundred sixty-three".